So sánh phân số \(\dfrac{2001}{2002}\)và\(\dfrac{2021}{2003}\)

Viết lại câu. Câu với wish và If only:

1. She talks too much in class.

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2. What a pity! I didn't watch the film last night.

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3. It’s a pity that your friend isn’t at this party.

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4. I don’t know her address and phone number.       

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5. I don't have time to help you do this work.

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6. I’m sorry I can’t go to the party.

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7. I’m sorry I missed your birthday party.

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8. It’s a pity I didn’t take my doctor’s advice.

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Tìm GTNN của biểu thức D=\(\dfrac{3x^2+2x+1}{2x^2+1}\)

Thực hiện phép thính sau:

 (-3xy²+x)(x+xy²)